GOG.com announces "one promo to rule them all" to conclude their holiday sale, saying the "number of games you can get today up to 75% off is simply mind-boggling." The sale items are on the GOG.com front page, and they note that in addition to all these 75% discounts, most of the rest of their catalog is still on sale for half-off for the next 24 hours. Meanwhile, it's day fourteen of the Steam holiday sale. Here are today's specials: